We are using domain trust between two domains and SharePoint is installed on one of them. Problem is, users from other domain are not available in SharePoint. When I try to add user in a group and start typing their names, then they are not shown in suggestions.
This domain trust setting was done by Infrastructure guys and I want to know if something needs to be done at SharePoint end or not? User profile service is not running and I believe it should work without it because even if UPS is not running, users in the current domain are always available so why not from other domain, correct?
Is there a way to check that domain trust is correctly established?